If you are tasked with creating a custom widget that should display data that updates frequently, what would be the best practice for handling these updates?

Using the StreamBuilder widget in Flutter is a best practice for displaying data that updates frequently. It allows developers to listen to a stream of data and rebuild the UI automatically when new data is available. This is particularly useful for real-time updates, such as receiving data from a WebSocket or a data stream. Understanding how to effectively use StreamBuilder is crucial for developing Flutter applications that require dynamic and continuously updating content.